213 jobs
eFinancialCareers London £120,000 pa
Builds core trade lifecycle, settlement, finance systems and regulatory reporting platforms for an investments client, replacing manual and batch processes with an event-driven, real-time architecture. Works across Java, Python, Spring Boot, Kafka, PostgreSQL and AWS microservices, with genuine influence over design decisions in a growing team.
eFinancialCareers London
A hands-on principal engineer and architect role shaping technology strategy for a complex, regulated financial-services estate, working directly with the Head of Technology. Involves stress-testing strategy against engineering, regulatory and operational constraints, leading architecture and design decisions across multiple teams through influence, and stepping into major incidents and recovery efforts.
eFinancialCareers London
Joining a three-person storage team, you will design, deliver and support all storage and backup systems, ensuring 24x365 availability and capacity. The role uses DevOps and infrastructure-as-code practices with Python, PowerShell, Terraform or Ansible, plus enterprise products such as Pure Storage, Rubrik, VAST and Azure, working closely with server, database and research teams.
eFinancialCareers London £1,100 – £1,200 pd
Hands-on KDB+/q engineering role in a front-office technology team supporting electronic trading across Fixed Income markets. You will build real-time pricing, trading and risk applications, maintain data pipelines and APIs, and work directly with traders and quants on high-performance time-series platforms, including production support and releases.
eFinancialCareers London
Partners with portfolio managers, IT and data engineering to assess data needs across equities, FX, rates, fixed income and credit, then sources and evaluates market, reference, pricing and alternative datasets for systematic strategies. Leads complex data projects, compares vendors and negotiates agreements, and advises on data operations such as cost allocation, cataloguing and delivery infrastructure.
eFinancialCareers London
Lead a data and analytics organisation spanning strategy, governance, business intelligence, data science and experimentation. Owns game economy standards, monetization optimisation, segmentation and pricing, working with Product and Live Operations to grow player lifetime value. Also directs forecasting, machine learning and responsible AI use across the portfolio.
eFinancialCareers London
Owns a greenfield Snowflake-based enterprise data platform for a private markets investment firm, covering architecture, ingestion pipelines and governance. Integrates portfolio, fund administration and market data into governed datasets, with hands-on Python, SQL and Azure work alongside senior stakeholders.
eFinancialCareers London £70,000 – £106,000 pa
Designs and builds a greenfield data platform in a hybrid Azure and on-prem environment, creating pipelines, ETL processes and data models while migrating legacy capability. Works within a circa 100-person EMEA Data & Analytics Technology team, mentoring peers and aligning delivery to platform strategy. Requires at least two days a week in the London office.
eFinancialCareers London £700 pd
Hands-on role building AI-powered applications, intelligent workflows and machine learning solutions in Python, taking them from concept through to enterprise production deployment. Involves LLMs, agentic frameworks, AI orchestration, model evaluation, testing and monitoring, working with technical teams and business stakeholders to drive AI adoption.
eFinancialCareers Belfast
Builds and maintains Java/J2EE microservices and RESTful web services for Citi's Risk Data Team within the Institutional Data Platform, working on high-performance data pipelines and aggregation engines. The role involves Core Java multi-threading, Spring Boot, SQL optimisation, CI/CD and code quality tooling, plus leading and mentoring a team of developers. Hybrid working in Belfast with up to two days per week from home.
eFinancialCareers London £84,000 – £126,000 pa
Leads data architecture deliverables for a business area or domain, covering current and target state definitions, data cataloguing, and architecture governance. Ensures projects align with data policies and standards while collaborating with global architects and IT/business stakeholders. Supports foundational capabilities underpinning the Data Platform, Client Lifecycle Program, ECB and BCBS 239 in EMEA.
eFinancialCareers London £600 – £700 pd
Shapes future-state architecture across a data platform landscape, leading build vs. buy assessments and providing strategic direction to delivery and technology teams. Supports the transition from current to target-state architecture, resolving conflicts and dependencies while weighing low-code/no-code and AI trends. Requires banking and enterprise data platform expertise.
eFinancialCareers Belfast £45,000 – £60,000 pa
Hands-on role building and maintaining ETL/ELT pipelines, data warehouses and data lakes, with a focus on Microsoft Fabric, SQL Server, SSIS and SSRS, plus tools like Fivetran and Alteryx. You'll take ownership of the data engineering function, support data migration from legacy systems and work closely with analysts, scientists and business stakeholders.
eFinancialCareers London £92,000 – £138,000 pa
Hands-on AI Solutions Architect role taking end-to-end ownership of AI solution design, from use case intake through architecture, governance approval and production delivery. Works across Microsoft 365 Copilot, Copilot Studio, Power Platform, Azure AI and GCP, driving designs through Solution Design Authority and AI governance in a regulated banking environment.
eFinancialCareers London £108,000 – £162,000 pa
Sets up and leads the EMEA cross-domain data architecture function, covering domains such as Party, Product, Transaction, Risk, Finance, Compliance, Operations and HR. Drives data domain and data product thinking, target-state architecture, governance and standards, and supports strategic programmes including the Data Platform, Client Lifecycle Programme, ECB and BCBS 239. Works with business and IT stakeholders and global domain architects, using tools such as Collibra, Axon, Purview, Databricks and Snowflake.
